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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 418 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  2. 2.🌈 In the resistor colour code, which number does black stand for?
  3. 3.🌈 In the resistor colour code, which number does white stand for?
  4. 4.🌈 In the resistor colour code, which number does red stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-red-red (b) brown-brown-red (c) brown-brown-orange (d) brown-brown-brown
  6. 6.🌈 In the resistor colour code, which number does brown stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) white-brown-red (b) white-brown-black (c) white-brown-brown (d) brown-white-brown
  8. 8.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  13. 13.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-orange-red (b) orange-orange-brown (c) orange-orange-black (d) orange-yellow-brown
  16. 16.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  17. 17.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  18. 18.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5900 Ω resistor? (a) green-white-brown (b) green-white-orange (c) green-white-red (d) white-green-red
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) blue-red-brown (b) red-blue-black (c) blue-red-black (d) violet-red-black
  22. 22.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, yellow, brown. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does green stand for?
  25. 25.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, blue, brown. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) red-brown-red (d) red-brown-brown
  28. 28.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) orange-grey-red (b) orange-grey-black (c) orange-grey-brown (d) grey-orange-brown
  30. 30.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) violet-yellow-brown (b) violet-yellow-red (c) yellow-violet-red (d) violet-yellow-orange
  36. 36.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56000 Ω resistor? (a) green-blue-orange (b) blue-green-orange (c) green-blue-yellow (d) green-blue-red
  38. 38.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands red, yellow, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?

Answer key

  1. 620
  2. 0
  3. 9
  4. 2
  5. brown-brown-red
  6. 1
  7. white-brown-brown
  8. 37000
  9. 6.1
  10. 4.6
  11. 52
  12. the one nearest an end
  13. 70000
  14. 8
  15. orange-orange-brown
  16. 3100
  17. 5 %
  18. 230
  19. 49
  20. green-white-red
  21. blue-red-black
  22. 24
  23. 840
  24. 5
  25. 12
  26. 960
  27. red-brown-brown
  28. 58
  29. orange-grey-brown
  30. 76
  31. 8100
  32. 73
  33. 190
  34. 360
  35. violet-yellow-red
  36. 140
  37. green-blue-orange
  38. 33
  39. 24000
  40. 74000

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